Global Patent Index - EP 1833048 B1

EP 1833048 B1 20100428 - Hologram recorder and hologram recording method

Title (en)

Hologram recorder and hologram recording method

Title (de)

Hologrammaufzeichnungsgerät und Hologrammaufzeichnungsverfahren

Title (fr)

Enregistreur d'hologramme et procédé d'enregistrement d'hologramme

Publication

EP 1833048 B1 (EN)

Application

EP 07103426 A

Priority

JP 2006059118 A

Abstract (en)

[origin: EP1833048A1] A multiple hologram recorder includes an optical system and an incident angle controller. The optical system applies a recording beam and a reference beam to a unit recording region of a hologram recording medium. The recording beam is modulated in accordance with information to be recorded. The reference and the recording beams have the same wavelength. The angle controller adjusts the incident angle of the recording or reference beam to preset angles. Every time the incident angle is adjusted to one set angle, one-page holographic recording is performed. The set angles include a reference angle associated with an angular interval. The incident angle controller causes the incident angle to continuously vary within the angular interval when the incident angle is adjusted to the reference angle. This continuous variation is performed with the recording and the reference beams irradiating the unit recording region.

IPC 8 full level

G11B 7/0065 (2006.01)

CPC (source: EP)

G03H 1/26 (2013.01); G11B 7/00772 (2013.01); G11B 7/08564 (2013.01); G11B 7/127 (2013.01); G11B 7/1362 (2013.01); G11B 7/139 (2013.01); G11B 7/1392 (2013.01); G03H 1/265 (2013.01); G03H 2001/0482 (2013.01); G03H 2222/56 (2013.01)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 1833048 A1 20070912; EP 1833048 B1 20100428; CN 101034280 A 20070912; DE 602007006086 D1 20100610; JP 2007240581 A 20070920; KR 100831859 B1 20080522; KR 20070091537 A 20070911; TW 200739290 A 20071016; US 2007206255 A1 20070906

DOCDB simple family (application)

EP 07103426 A 20070302; CN 200710086713 A 20070306; DE 602007006086 T 20070302; JP 2006059118 A 20060306; KR 20070020050 A 20070228; TW 96107175 A 20070302; US 71384207 A 20070305